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-   Performance, Brainstorming & Tuning (https://www.gmforum.com/performance-brainstorming-tuning-96/)
-   -   New Bonneville owner looking for suggestions. (https://www.gmforum.com/performance-brainstorming-tuning-96/new-bonneville-owner-looking-suggestions-235959/)

JoeST 05-23-2006 06:20 AM

I could see why your not fond of the Taylors than.
I had several problems with the coil packs on my last car 96 Grand Am. I went through two differnt sets in just three years. And if it was a hot day out you didnt go for long trips unless you wonted to get stuck for awhile. Every other car my mom has had over the last few years weve had to replace the coils in for the same problems, but granted most of them have been early to mid 90's cars so I may be jumping the gun here.

erics95se 05-23-2006 09:07 AM

Do one of the 3" downpipes from the right side of the engine (Rear on the FWD) to a magnaflow hi-flow catalytic convertor, to 3" stainless pipe all the way back, keep the resonator, remove the u-bend in the pipe near the front to increase flow, the mufflers, magnaflow.. do a pulley conversion to a 3.4", cool air induction VIA fenderwell, there's alot of stuff you can do with these cars, even when they're n/a like mine

either way.. KEEP THE RESONATOR (brother recently did the same setup on his 04 Monte Supercharged) and it sounds like absolute crap because of the fact he took off the resonator and it rattles now , the whole exhaust system..

If you were around a little earlier, my brother was selling an extra 3.4" pulley that he got shipped on accident and didn't send back, but VPTruman picked that up already.. had for $75, whole thing, pulley, hub.

also, looks like you're relatively new here.. Welcome to the obsession, trust me.. once you're here, it's quite difficult to get away.. i've only been here a few short months, but i find myself obsessed with BC more and more every new day, haha

willwren 05-23-2006 10:28 AM


Originally Posted by erics95se
Do one of the 3" downpipes from the right side of the engine (Rear on the FWD) to a magnaflow hi-flow catalytic convertor, to 3" stainless pipe all the way back, keep the resonator, remove the u-bend in the pipe near the front to increase flow

Eric, Bonnevilles don't have a U-bend.

JoeST 05-23-2006 10:38 AM


Originally Posted by erics95se
also, looks like you're relatively new here.. Welcome to the obsession, trust me.. once you're here, it's quite difficult to get away.. i've only been here a few short months, but i find myself obsessed with BC more and more every new day, haha

Ha Ha, you don't even know yet I can get pretty carried away with things. You should ask my wife about my old car. It was a 92 RS Camaro simply known as the other Bi#** to her. Scared the hell out of her & many friends with it. Never ran it on the drag strip but it would hang right beside the 2000 & newer Vette on the stright & easly pass them up in the twisties . I had it up to 160mph several times with room to go more, just not enough balls for it. And the sad part was it was a TBI 305 with over 130;000mi on it. Granted I done a good bit of tweeking to the car, but for the way it ran for what I done to it was unreal.

Now that Ive gotten a bit older though the Bonnie suites my taste just fine to make a nice sleeper out of.

jdq 05-23-2006 10:46 AM

In tech info at the top of the site there is lingo explanation,PEM is ported exhaust manifold,Willwren wont steer you wrong he is the captain of the ship.Ive never had a problem with any AC DELCO coil owning 3 gm.

lash 05-23-2006 10:57 AM

I personally don't have an opinion on which aftermarket muffler to use, but since you mentioned that you are a fan of Flowmaster and nobody has mentioned it yet, many here have the Flowmaster 80 as used in the F-body cars and are quite happy with them.

There are also those here that believe you do not need to increase your exhaust diameter unless you are planning some major flow improvements up front also. IMO, limit your back end exhaust improvements to a hi-flow magnaflow cat and the Flowmaster 80 muffler or similar and use that extra money to get Ported Exhaust Manifolds (PEMs).

As has been said here before, it takes a lot of up front improvements before you will outflow your stock exhaust (which is stainless BTW) and you can actually hurt output by decreasing exhaust velocity.

VigCS 05-23-2006 08:46 PM

Here is an in car clip of my flowmaster 80, though it is a NA your L67 will sound almost identical except there will be whine. http://media.putfile.com/in-car-exhaust-79

Here is my car idling.

http://media.putfile.com/exhaust286

Sounds like a V8 at idle =P. If you put a custom exhaust on, keep the resonator! It doesn't sound nearly as good, sounds kind of ricey without it almost. My car has a resonator.

toastedoats 05-23-2006 08:58 PM


Originally Posted by VigCS
Here is an in car clip of my flowmaster 80, though it is a NA your L67 will sound almost identical except there will be whine. http://media.putfile.com/in-car-exhaust-79

Here is my car idling.

http://media.putfile.com/exhaust286

Sounds like a V8 at idle =P. If you put a custom exhaust on, keep the resonator! It doesn't sound nearly as good, sounds kind of ricey without it almost. My car has a resonator.

his will also sound a bit different due to the different configuration, F-body style, vs 2 strought through mufflers

VigCS 05-23-2006 09:54 PM


Originally Posted by toastedoats

Originally Posted by VigCS
Here is an in car clip of my flowmaster 80, though it is a NA your L67 will sound almost identical except there will be whine. http://media.putfile.com/in-car-exhaust-79

Here is my car idling.

http://media.putfile.com/exhaust286

Sounds like a V8 at idle =P. If you put a custom exhaust on, keep the resonator! It doesn't sound nearly as good, sounds kind of ricey without it almost. My car has a resonator.

his will also sound a bit different due to the different configuration, F-body style, vs 2 strought through mufflers

right...forgot about that...

JoeST 05-23-2006 10:53 PM

VigCS, sounds pretty good. Correct me if Im wrong the 80 series is a 2 chamber crossflow right? I would like to stay with the duel mufflers verses the crossflow but havent decided for sure yet. As for the resonator I think I will be leaving it in cause I cant stand that ricer sound. Too nice of of car to have it sounding like some POS kids toy.
I had to order a new front lower engine mount today, old ons pretty sloppy. And I also need to replace the oil pressure sending unit. My wife came to pick me up from work tonight & it was diveing back & forth from about 45 to 0 than back again. Checked the oil just incase & everythings fine there so I would assume the sender has gone bad. Damn eletric gages, never have trusted them. Can anyone point me in the right direction of the location of the sender? Ive not had much chance to look yet.

Im planning to gut out the air box tommrow as well & see what happens. Man this car has me wonting to do all kinds of things.
Wich that reminds me dose anyone make a spring set for these cars. I wouldent mind dropping it about 1 to 1 1/2 inches & going to a slightlety lower profile tire. Thinking about a 235/45-17 or mabey a 40 series max. I dont wont it to look slamed but just set it off a bit from stock.


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